US4086025A - Propellers with retractable blades - Google Patents

Propellers with retractable blades Download PDF

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Publication number
US4086025A
US4086025A US05/714,128 US71412876A US4086025A US 4086025 A US4086025 A US 4086025A US 71412876 A US71412876 A US 71412876A US 4086025 A US4086025 A US 4086025A
Authority
US
United States
Prior art keywords
propeller
hub
drive shaft
blades
rack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/714,128
Other languages
English (en)
Inventor
Sven Ingvar Astrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US4086025A publication Critical patent/US4086025A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/20—Hubs; Blade connections
    • B63H1/22—Hubs; Blade connections the blades being foldable
    • B63H1/24—Hubs; Blade connections the blades being foldable automatically foldable or unfoldable

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Harvester Elements (AREA)
  • Transmission Devices (AREA)
US05/714,128 1975-08-22 1976-08-13 Propellers with retractable blades Expired - Lifetime US4086025A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7509357A SE392855B (sv) 1975-08-22 1975-08-22 Propeller med fellbara blad
SW7509357 1975-08-22

Publications (1)

Publication Number Publication Date
US4086025A true US4086025A (en) 1978-04-25

Family

ID=20325332

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/714,128 Expired - Lifetime US4086025A (en) 1975-08-22 1976-08-13 Propellers with retractable blades

Country Status (10)

Country Link
US (1) US4086025A (fr)
AU (1) AU500801B2 (fr)
DE (1) DE2637219A1 (fr)
DK (1) DK375276A (fr)
FI (1) FI762394A (fr)
FR (1) FR2321592A1 (fr)
GB (1) GB1533133A (fr)
IT (1) IT1071412B (fr)
NL (1) NL7609162A (fr)
SE (1) SE392855B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204806A (en) * 1977-12-09 1980-05-27 Outboard Marine Corporation Folding propeller
US4242049A (en) * 1978-02-06 1980-12-30 Hasselfors Stainless Ab Foldable propeller
US4275991A (en) * 1978-06-27 1981-06-30 Ab Volvo Penta Boat propeller
US4310285A (en) * 1977-12-09 1982-01-12 Outboard Marine Corporation Folding propeller with rubber hub
US4768927A (en) * 1985-07-02 1988-09-06 Confol Aps Adjustable folding propeller
US20100104437A1 (en) * 2008-10-24 2010-04-29 Caraballoso Esteban A Retractable composite impeller assembly
US20130265850A1 (en) * 2012-04-05 2013-10-10 Cggveritas Services Sa Active cleaning device for seismic streamers and related methods
DK178074B1 (en) * 2013-10-14 2015-05-04 Flexofold Aps Folding propeller
EP4023545A1 (fr) * 2020-11-12 2022-07-06 Torqeedo GmbH Hélice à pales rabattables
US20220250727A1 (en) * 2021-02-08 2022-08-11 Torqeedo Gmbh Folding Propeller for a Water Vehicle
IT202200005693A1 (it) * 2022-03-23 2023-09-23 Velettrica S R L Elica a pale abbattibili e sistema di propulsione

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8000362L (sv) * 1980-01-16 1981-07-17 Volvo Penta Ab Batpropeller med fellbara blad
IT1172650B (it) * 1983-10-19 1987-06-18 Giovanni Fabio Elica a pale mobili angolarmente rispetto l'asse dell'ogiva mozzo per effetto dell'albero motore
AUPN617295A0 (en) * 1995-10-25 1995-11-16 Tristream Propeller Company Pty Limited An improved propeller

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US731020A (en) * 1902-12-08 1903-06-16 Bernt Charles Propeller for vessels.
US866369A (en) * 1907-02-23 1907-09-17 Arthur W Learnard Propeller.
US938291A (en) * 1909-07-15 1909-10-26 Milton D Thompson Propeller.
US1491512A (en) * 1922-05-29 1924-04-22 Bracco Frederick Propeller
US2477944A (en) * 1947-07-19 1949-08-02 Edward H Rouse Adjustable pitch propeller
US2638171A (en) * 1947-09-30 1953-05-12 Freeman C Foss Automatic variable pitch propeller
GB878852A (en) * 1959-03-24 1961-10-04 Bamford & Company Ltd F Improvements in or relating to screw propellers
DE2300812A1 (de) * 1973-01-09 1974-07-11 Menke Josef F Faltpropeller fuer segeljachten mit hilfsmotor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US731020A (en) * 1902-12-08 1903-06-16 Bernt Charles Propeller for vessels.
US866369A (en) * 1907-02-23 1907-09-17 Arthur W Learnard Propeller.
US938291A (en) * 1909-07-15 1909-10-26 Milton D Thompson Propeller.
US1491512A (en) * 1922-05-29 1924-04-22 Bracco Frederick Propeller
US2477944A (en) * 1947-07-19 1949-08-02 Edward H Rouse Adjustable pitch propeller
US2638171A (en) * 1947-09-30 1953-05-12 Freeman C Foss Automatic variable pitch propeller
GB878852A (en) * 1959-03-24 1961-10-04 Bamford & Company Ltd F Improvements in or relating to screw propellers
DE2300812A1 (de) * 1973-01-09 1974-07-11 Menke Josef F Faltpropeller fuer segeljachten mit hilfsmotor

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204806A (en) * 1977-12-09 1980-05-27 Outboard Marine Corporation Folding propeller
US4310285A (en) * 1977-12-09 1982-01-12 Outboard Marine Corporation Folding propeller with rubber hub
US4242049A (en) * 1978-02-06 1980-12-30 Hasselfors Stainless Ab Foldable propeller
US4275991A (en) * 1978-06-27 1981-06-30 Ab Volvo Penta Boat propeller
US4768927A (en) * 1985-07-02 1988-09-06 Confol Aps Adjustable folding propeller
US8851842B2 (en) 2008-10-24 2014-10-07 Esteban A Caraballoso Retractable composite rotor blade assembly
US8459948B2 (en) 2008-10-24 2013-06-11 Esteban A. Caraballoso Retractable composite rotor blade assembly
US20100104437A1 (en) * 2008-10-24 2010-04-29 Caraballoso Esteban A Retractable composite impeller assembly
US20130265850A1 (en) * 2012-04-05 2013-10-10 Cggveritas Services Sa Active cleaning device for seismic streamers and related methods
US9254509B2 (en) * 2012-04-05 2016-02-09 Cggveritas Services Sa Active cleaning device for seismic streamers and related methods
DK178074B1 (en) * 2013-10-14 2015-05-04 Flexofold Aps Folding propeller
US10214269B2 (en) 2013-10-14 2019-02-26 Flexofold Aps Folding propeller
EP4023545A1 (fr) * 2020-11-12 2022-07-06 Torqeedo GmbH Hélice à pales rabattables
US20220250727A1 (en) * 2021-02-08 2022-08-11 Torqeedo Gmbh Folding Propeller for a Water Vehicle
IT202200005693A1 (it) * 2022-03-23 2023-09-23 Velettrica S R L Elica a pale abbattibili e sistema di propulsione
WO2023180889A1 (fr) * 2022-03-23 2023-09-28 Velettrica S.R.L. Hélice à pales pliables et système de propulsion

Also Published As

Publication number Publication date
NL7609162A (nl) 1977-02-24
IT1071412B (it) 1985-04-10
DK375276A (da) 1977-02-23
DE2637219A1 (de) 1977-03-03
SE392855B (sv) 1977-04-25
FR2321592B1 (fr) 1980-11-14
FR2321592A1 (fr) 1977-03-18
GB1533133A (en) 1978-11-22
FI762394A (fr) 1977-02-23
AU1699176A (en) 1978-02-23
SE7509357L (sv) 1977-02-23
AU500801B2 (en) 1979-05-31

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